Theldir Whitemoon was a male sun elf psion shaper and an older member of the Kaliesh'erai, an association of psionic elves in Evereska. Around 1374 DR, Theldir Whitemoon had emerged as the leader of a conservative contingent within the Kaliesh'erai, older members who preferred seclusion and separation from the outer, non-elven world.